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<title>Adopting 4.9 mechanisms and APIs</title>
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<h1>Adopting 4.9 mechanisms and APIs</h1>

<p>
  This section describes changes that are required if you are trying to change
  your 4.8 plug-in to adopt the 4.9 mechanisms and APIs.
</p>

<ol>
	<li><a href="#Batik_Upgrade">Direct usages of Apache Batik CSS should be upgraded</a></li>
	<li><a href="#Icu4j_Upgrade">Direct usages of IBM ICU4j should be upgraded</a></li>
	<li><a href="#Gogo_Upgrade">Direct usages of Apache Felix Gogo should be upgraded</a></li>
</ol>

<hr>

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<h2>1. <a name="Batik_Upgrade">Direct usages of Apache Batik CSS should be upgraded</a></h2>
<p><strong>What is affected:</strong> Clients directly using Apache Batik CSS bundles version <code>1.9.1</code>.
</p>
<p><strong>Description:</strong>
Due to security vulnerabilities, we have updated the Apache Batik bundles used by Eclipse Platform to version <code>1.10.0</code>. Previously it was
using version <code>1.9.1</code>. Clients that were making direct use of the Apache Batik CSS APIs version <code>1.9.1</code> should
upgrade their code to work with version <code>1.10.0</code>. Other clients should not be affected. See <a href="https://xmlgraphics.apache.org/batik/">
Apache Batik website</a> for details.
</p>
<p><strong>Action required:</strong>
Clients should:
</p>
<ul>
<li>Upgrade their code to work with Apache Batik CSS version <code>1.10.0</code></li>
</ul>

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<h2>2. <a name="Icu4j_Upgrade">Direct usages of IBM ICU4j should be upgraded</a></h2>
<p><strong>What is affected:</strong> Clients directly using IBM ICU4j bundle versions earlier than <code>62.1.0</code>.
</p>
<p><strong>Description:</strong>
The IBM ICU4j bundles used by Eclipse Platform was updated to version <code>62.1.0</code> to take advantage of support for Unicode versions 10 and 11.
Previously it was using version <code>58.2.0</code>. Clients that were making direct use of the IBM ICU4j APIs should upgrade and ensure their code
continues to work with version <code>62.1.0</code>. Other clients should not be affected. See <a href="http://site.icu-project.org/download/">IBM ICU4j
website</a> for details.
</p>
<p><strong>Action required:</strong>
Clients should:
</p>
<ul>
<li>Upgrade their code to work with IBM ICU4j version <code>62.1.0</code></li>
</ul>

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<h2>3. <a name="Gogo_Upgrade">Direct usages of Apache Felix Gogo should be upgraded</a></h2>
<p><strong>What is affected:</strong> Clients directly using Apache Felix Gogo Runtime or Apache Felix Gogo Shell bundle versions earlier than
<code>1.1.0</code>.
</p>
<p><strong>Description:</strong>
Two of the Apache Felix Gogo bundles used by Eclipse Platform to provide the OSGi console were updated to version <code>1.1.0</code>. Previously it
was using version Apache Felix Gogo Runtime <code>1.0.6</code> and Apache Felix Gogo Shell <code>1.0.0</code>. Clients that were making direct use of
the Apache Felix Gogo APIs should upgrade and ensure their code continues to work with version <code>1.1.0</code> of both bundles. Other clients should
not be affected.
</p>
<p><strong>Action required:</strong>
Clients should:
</p>
<ul>
<li>Upgrade their code to work with Apache Felix Gogo Runtime version <code>1.1.0</code> and Apache Felix Gogo Shell version <code>1.1.0</code></li>
</ul>

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